NET
7 Or did I commit a sin by humbling myself so that you could be exalted, because I proclaimed the gospel of God to you free of charge?
Darby
7 Have I committed sin, abasing myself in order that *ye* might be exalted, because I gratuitously announced to you the glad tidings of God?
KJV
7 Have I committed an offence in abasing myself that ye might be exalted, because I have preached to you the gospel of God freely?